Time filter

Source Type

Ansari A.A.,Kebbi State University of Science and Technology | Sitaram K.,University of Guyana
American Journal of Food Technology | Year: 2011

Present study was carried out during the year 2006-2007 on dried earthworm powder collected from culture of Eisenia fetida in vermicomposting units and focused on the effect of the dried earthworm on microbes determining the anti-microbial and anti-fungal properties of the worms, as well as the chemical composition of worms obtain from vermicomposting units. The earthworm powder was also subjected to analysis of nitrogen and potassium using standard procedures. Antimicrobial disc hffusion suspecting tests were carried out against Bacteria (Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa) as well as the fungus Candida albicans with the following treatments: Control, earthworm powder in water (1:1), earthworm powder in water (1:2) and earthworm powder in acetone (1:2). The technique involves using disk diffusion susceptibility testing where disks from both the pure and &luted honey as well as the antibiotic disk erythromycin (control) were impregnated onto the surface of the Mueller Hinton agar. The study conclusively proved that the earthworm powder (all hlutions) has antifungal properties which would be effective in treating fungal infections, such as candidosis whereas did not indicate the anti-microbial properties which may be attributed to hfferent composition of elements in earthworm powder obtained from vermicomposting unit rather than garden soil. ANOVA analysis (Single factor) at p = 0.05, proved that differences between the different concentrations of earthworm powder treatment containing colonies of C. albicans was significant, inhcating the effect of earthworm powder by inhibiting the growth of the fungus C. albicans. © 2011 Academic Journals Inc.

Itodo A.U.,Kebbi State University of Science and Technology | Itodo H.U.,Benue State University
Electronic Journal of Environmental, Agricultural and Food Chemistry | Year: 2011

This information add to database an attempt to model the adsorption of dye from dyeing wastewater in relationship to certain established energy parameters. The adsorbent is thermochemically cracked shea nut shell activated carbon, the adsorbate is textile dyestuff wastewater from Chellco textile ltd., Kaduna, Nigeria. The process is batch adsorption test while the adopted models are Rudishkevich - Dubinin and Temkin isotherms. This critical study which utilizes these more recent adsorption isotherms was found to present the mean free energy values (ED =1.036 - 1.406 kJmol-1) as a direct proportionality to the theoretical saturation capacities (qD = 2.032 - 4.169mgg-1). Sorption energy values proves to be higher for biosorbent, SS/A/15 (1.364 KJmol-1),which also gave the corresponding higher adsorption capacity (4.169 mgg-1) than the other three biosorbent in the series. A thermodynamic parameter (ΔG) was investigated to be more negative with sorbent - dye contact time, within the equilibration limit. The Close similarities of analytical results to those reported in reviewed literature, and the good degree of adsorption is an indication that using shea nut shells as a low cost biomass for generating activated carbon could be a feasible outlet in bioremediation.

Itodo A.U.,Kebbi State University of Science and Technology | Itodo H.U.,Benue State University
Electronic Journal of Environmental, Agricultural and Food Chemistry | Year: 2010

In this research, isotherm models were utilized to contribute to scholarly knowledge in predicting the forces or energy defining certain adsorption phenomenon. GCMS measurement of equilibrium phase atrazine after adsorption onto Sheanut shells (SS) acid derived activated carbon were fitted into the D-R and Temkin isotherm models for energy data estimation viz; Sorption energy value (BD), mean free energy (ED) and heat of sorption (B). They were estimated as 0.7600mol2KJ-2, 0.8111 kjmol-1 and 0.790 Jmol-1 respectively. The parameter predicting the type of adsorption was evaluated. Estimated values of B < 20kJ/mol and ED < 8 is an indication that physisorption (Non specific adsorption) dominates chemisorption and ion exchange. The D-R model with a higher correlation coefficient values, R2 = 0.979 proves a better choice in explaining sorption energies. Generally, sheanut shells can be used as alternative precursors for activated carbon production via the two steps and acid treatment method.

Obaroh I.O.,Kebbi State University of Science and Technology | Achionye-Nzeh G.C.,University Of Ilorin
Asian Journal of Agricultural Research | Year: 2011

Tilapias are yet to reach their full aquaculture potential because of the problem of prolific breeding which usually results in overpopulation thus leading to stunted growth. The potential use of Azadirachta indica leafs as an antifertility substance in controlling prolific breeding in Oreochromis niloticus was investigated. Crude extract of Azadirachta indicaleaves. were added to a basal diet (35% crude protein) at 0.0, 0.5. 1.0, 2.0, 4.0 and 8.0 g kg -1 diet, respectively (Dl, D2, D3, D4, D5 and D6) and fed to 180 Oreochromis niloticus (90 males and 90 females) Mean±SD weight of 29.30±2.02-31.79±3.11 g twice daily (0900-0930, 1700-1730) at 3% of their body weight for 56 days to evaluate the effects on growth and reproduction. There was variation (p<0.05) in growth parameters with fish fed 1.0 g kg -1 diet showing best Mean±SD weight gain of 19.68±3.22 g. A total of 63-89 hatchlings were counted in the control tank in the 3rd week and 35-51 hatchlings from fish fed with 0.5 g kg -1 diet in the 5th week, there was no breeding in the groups; D3, D4, D5 and D6 during the course of this study. This study infers that Azadirachta indica leafs extract could be used in controlling prolific breeding in Oreochromis niloticus for efficient and sustainable development of tilapia farming. © 2011 Knowledgia Review, Malaysia.

Itodo A.U.,Kebbi State University of Science and Technology
Research Journal of Pharmaceutical, Biological and Chemical Sciences | Year: 2011

This study was carried out to compare the dye adsorption capacities, intencities, efficiency and usability of biosorbent prepared from chemically treated groundnut shells. Data were tested with three isotherm models. Their trends of applicability from the R2 values follows the order; Temkin (0.760-0.974) > Langmuir (0.598-0.949) > Freundlich (0.606-0.938).Maximum adsorption capacities' (qm=2.188) and (Kf=0.693) were found for GS/SALT/15 by the Langmuir and Freundlich model respectively.

Discover hidden collaborations